The climate crisis has reshaped contemporary architecture. Sustainability has become a central guiding force in design, and in turn, architects are rethinking how to build today. For CO Adaptive Architecture, addressing the climate crisis begins with a process oriented practice. Together, Ruth Mandl and Bobby Johnston have created a firm that embodies how a values-based approach can tackle the most pressing issues of our time. The result is elegant and impactful architecture brought to life with poise and finesse.
A carbon neutral building is achieved when the amount of CO2 emissions is balanced by climate-positive initiatives so that the net carbon footprint over time is zero. Considering their unmatched ability to absorb CO2, planting trees is often viewed as the best carbon offsetting solution. But as cities become denser and the amount of available horizontal space for green areas drastically reduces, architects have been forced to explore other approaches. Therefore, to address these climatic challenges and connect people to nature, exterior green walls have become a rising trend in increasingly vertical cities. Even if there is research to claim that these can positively impact the environment, many question if they can actually contribute to a carbon neutral architecture. Although the answer may be quite complex, there seems to be a consensus: green walls can be effective, but only through good design.
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Urban Sequoia Forests of Buildings Isolating Carbon & Producing Biomaterials . Image Courtesy of SOM / Miysis
With the magnitude and urgency of the immediate Covid-19 crisis worldwide, efforts have been concentrated on saving lives, rather than focusing on concerns related to the road to Net-zero carbon. Net Zero carbon in regards to construction is defined as when the amount of carbon emissions associated with the construction of a building and its completion is zero. A zero-energy building will have an overall zero net energy consumption; the total amount of energy used by the building annually is equal to the amount of renewable energy generated on-site.
As the climate emergency presents itself as a severe and existential threat, it is crucial that the road to net-zero carbon is resumed large-scale in both an architectural and commercial sense. Around the globe, efforts have been renewed in an attempt to tackle the almost inconceivable. According to the 2019 global status report for buildings and construction, the buildings and construction sector accounted for 36% of final energy use and process-related carbon emissions in 2018. Although carbon emissions were temporarily reduced during the peak of the pandemic, they are set to swiftly return to previous figures.
Among the many difficulties that the construction industry currently faces, confronting the climate emergency continues to be one of the main challenges. In fact, considering that the sector is responsible for around 40% of global greenhouse gas emissions, aiming towards net-zero, carbon-neutral architecture should and must be the top priority. Although there is a long way to go for most buildings to cancel out the amount of carbon dioxide they produce, the concept is quickly gaining traction and will certainly become the new norm as we look into the not-too-distant future. As a result, the following question arises: how can architects, designers and other actors involved in the industry contribute to sustainable design and net-zero architecture?
Advances in biotechnology and material science are opening new material opportunities, with the potential of fundamentally changing the connection between the built environment and the natural world. Building materials and construction account for 11% of greenhouse gas emissions. The AEC industry can contribute to curbing climate change in the following years, and the re-evaluation of commonplace building materials is one of the most critical steps. Bioengineered materials, which grow, produce energy, self-heal, are the next frontier in biology and material science and potentially a path towards a new kind of architecture. Although innovation in these fields is still far away from mainstream commercial use, it promises to dramatically change the image of the built environment.
As revolutionary as the construction sector may seem nowadays, it currently accounts for nearly 40% of the world’s carbon dioxide emissions, 11% of which are a result of manufacturing building materials such as steel, cement, and glass. Fast forward a couple of years later, after a life-changing global pandemic and indisputable evidences of climate change, CO2 emissions are still on a rise, reaching a historical maximum in 2020 according to the 2020 Global Status Report for Buildings and Construction. Although a lot of progress has been made through technological advancements, design strategies and concepts, and construction processes, there is still a long way to go to reduce carbon emissions to a minimum or almost zero in the development of built environments.
Courtesy of Menilmonde via screenshot from 2°C New York City video
Following an extensive report on the impacts of climate change last year, the second installment of the Intergovernmental Panel on Climate Change (IPCC), the United Nation's body for assessing the science related to climate change, addresses the current and anticipated impacts of climate change on ecosystems, biodiversity, and human communities across the globe, along with action plans on how the natural world and human societies could adapt to these changes before reaching an "irreversible" state.
Affordable housing has become an increasingly dire global issue. Be it rent or homeownership, the unaffordability of homes has been on the rise. A look at U.S. Census data illustrates a sharp decline in homeownership in recent decades. Although Millennials were the most populous generation by 2019, they only contributed to homeownership at a rate of 47.9%. Contrastingly, Gen-X’s homeownership rate stood at 69%, following the silent generation at 77.8%. Trends of generational decline in homeownership are mirrored in other parts of the world, such as in the U.K. where rates have steadily dropped from 71% in 2003 to 64% by 2018. Many experts point to affordability as a large reason for this decline.
When talking about energy efficiency in buildings, it is inevitable to mention thermal insulation. We rarely see it in a finished building and, even in the technical drawings, the insulating layer appears as a thin hatch. But this is an element that is of vital importance, as it acts as a barrier to the flow of heat, hindering the exchange of energy between the interior and the exterior, reducing the amount of heat that escapes in winter and the thermal energy that enters in the summer. In a building with good thermal insulation, there is less need for heating to keep the house at a pleasant temperature, also reducing its carbon footprint. Currently, there are many countries that require a minimum level of thermal insulation for buildings, with increasingly strict parameters. But how should this issue be dealt with in the near future, with the worrying climate crisis forecast?
''A Building that Should Address our own Fragility'' says Dorte Mandrup in conversation with Louisiana Channel, in regards to her recent work, the Ilulissat Icefjord Center, in Greenland. An exhibition house in its own right, this powerful filmography explores the surrounding environment, offering insight into the changes seen on the ice and the harmonious relationship between the structure itself and the glacial landscape.
Dorte Mandrup was interviewed by Marc-Christopher Wagner in her studio in the Spring of 2021. Regarded as Humanist, Mandrup has been heavily influenced by medicine, sculpture and ceramics, creating engaging and evocative architectural form. As part of her philanthropic work the center is set to tell a narrative of evolution, human history and the secrets of the ice.
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Ecologic Pavilion In Alsace / Studio 1984. Image Cortesia de Studio 1984
The concept of upcycling refers to taking an item that would be considered waste and improving it in order to make it useful again, adding value and new functionality to it. This is a common word in several industries, such as fashion and furniture. In civil construction, this concept can also be incorporated, making the waste generated by the industry itself recirculate or even bringing what would be discarded from other industries to be processed and incorporated into constructions. This is the case of transforming agricultural waste into building materials, bringing a new use to discards, reducing the use of raw materials and creating products with excellent characteristics.
African nations are fighting climate change with an 8,000 kilometer long Great Green Wall meant to combat the desertification of the Sahel region, home to over 100 million people. Spanning the entire width of the African continent, the movement aims to restore 100 million hectares of degraded land, sequester 250 million tonnes of carbon and create 10 million jobs in rural Africa by 2030. Stretching from Senegal in the West to Djibouti in the East, the project is the joint effort of 21 African nations that strive to restore the once lush region and protect the livelihoods of local communities.
The Royal Institute of British Architects (RIBA) released a short educational film meant to teach young students aged 13 to 16 about the relationship between climate change and the built environment, exploring notions of sustainable design. The film introduces concepts such as embodied carbon, brownfield, green infrastructure, sustainable mobility and explains ideas such as adaptive reuse, retrofit, and the use of local materials. The scope of this learning resource is to empower young people to think creatively about how to address the climate crisis through design, helping raise a generation well versed in sustainability principles.
The Thermal Energy Center at Microsoft’s headquarters in Redmond, Washington, powers the campus almost entirely through electricity provided by geothermal energy exchanges. The project acts as a pilot program for the Embodied Carbon in Construction Calculator (EC3), a free database of construction EPDs and matching building impact calculator.. Image Courtesy of NBBJ
The growing consumer demand for transparency—especially around sustainability and environmental practices—has implications for industries from apparel to healthcare products. Mars Inc. recently released a cocoa sourcing map to tackle deforestation and increase accountability, and the Fashion Transparency Index pushes apparel companies to be more forthcoming about their social and environmental efforts.
Now it’s time for the building industry, characterized by a lack of information around the materials and practices used in construction and throughout a building’s lifecycle, to catch up. The cost of inaction is too high to ignore. That’s because buildings account for 39 percent of total global carbon emissions. Traditionally, most carbon reduction efforts in the building sector focus on operational carbon—a building’s everyday energy use, which accounts for roughly 28 percent of emissions. The remaining 11 percent comes from what is often ignored: embodied carbon.
https://www.archdaily.com/976015/strategies-to-reduce-embodied-carbon-in-the-built-environmentPeter Alspach, Margaret Montgomery
Earlier this month, a series of cities worldwide have revealed various initiatives that would help them better understand the effects of climate change and shape a more environmentally conscious environment. From several American cities creating digital twins to help curb carbon emissions to the city of Brighton mandating bee bricks to foster biodiversity and Central Park becoming a laboratory for studying climate change adaptation in urban parks, cities take on a multidisciplinary and multi-scalar approach to environmental issues.
Boating on The Lake in the northern reaches of Central Park. Image Courtesy of Harry Gillen on Unsplash
As temperatures rise across the globe with no sign of slowing down, the parks of the future will be subjected to droughts, flooding, punishing heat, and more abundant snowfall as warmer air is capable of holding more moisture than colder air. (It’s often said the world of the future will be wetter and wilder for that exact reason.)
So how can urban parks harden themselves for the coming decades? The Central Park Conservancy, the Yale School of the Environment, and the Natural Areas Conservancy have teamed up to turn New York City’s most iconic park into a hub for studying climate change adaptation and potential mitigation strategies. The Central Park Climate Lab was announced on January 12 by the conservancy, and the insights gleaned from the program will expand to other parks across New York city and eventually, other parks across the country.
Biodiversity has become ubiquitous in project descriptions as yet another mark of the design's environmental accomplishments. The increasing focus on sustainability, the standard inspired by the UN Sustainable Development Goals, prompts a deeper understanding of what biodiversity in urban environments means and how can architecture and urban design actively contribute to it. With species extinction rates soaring and urbanization over natural land continuing, cities become an essential factor in sustaining biodiversity, and the following explores how the built environment can foster multi-species habitats.
Ethical practice spans all parts of architecture. From intersectionality and labor to the climate crisis, a designer must work with a range of conditions and contexts that inform the built environment and the process of its creation. Across cultures, policies and climates, architecture is as much functional and aesthetic as it is political, social, economic, and ecological. By addressing the ethics of practice, designers can reimagine the discipline's impact and who it serves.
